#include <bits/stdc++.h>
using namespace std;
#define all(v) v.begin(), v.end()
typedef long long ll;
const int NMAX = 5005;
int n, h[NMAX], ix[NMAX], big[NMAX], cnt[NMAX][NMAX], dp[NMAX];
int main(void){
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n;
for(int i = 1; i <= n; i++) cin >> h[i], ix[h[i]] = i;
for(int i = 1; i <= n; i++)
for(int j = 1; j < i; j++)
if(h[j] > h[i]) big[h[i]]++;
for(int i = 1; i <= n; i++)
for(int j = i - 1; j; j--)
cnt[i][j] = cnt[i][j + 1] + (ix[j] < ix[i]);
memset(dp, 0x3f, sizeof(dp));
dp[0] = 0;
for(int i = 1; i <= n; i++){
int cur = dp[i - 1];
for(int j = i; j <= n; j++){
cur += big[j] + 2 * cnt[j][i] - j + i;
dp[j] = min(dp[j], cur);
}
}
cout << dp[n];
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1228 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1224 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1232 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1228 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1220 KB |
Output is correct |
| 29 |
Correct |
1 ms |
1232 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1236 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1228 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1224 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1232 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1228 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1220 KB |
Output is correct |
| 29 |
Correct |
1 ms |
1232 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 31 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 32 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 33 |
Correct |
5 ms |
4820 KB |
Output is correct |
| 34 |
Correct |
4 ms |
4812 KB |
Output is correct |
| 35 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 36 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 37 |
Correct |
4 ms |
4808 KB |
Output is correct |
| 38 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 39 |
Correct |
6 ms |
4808 KB |
Output is correct |
| 40 |
Correct |
4 ms |
4820 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
392 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1228 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1224 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1232 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1228 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1220 KB |
Output is correct |
| 29 |
Correct |
1 ms |
1232 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 31 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 32 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 33 |
Correct |
5 ms |
4820 KB |
Output is correct |
| 34 |
Correct |
4 ms |
4812 KB |
Output is correct |
| 35 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 36 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 37 |
Correct |
4 ms |
4808 KB |
Output is correct |
| 38 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 39 |
Correct |
6 ms |
4808 KB |
Output is correct |
| 40 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 41 |
Correct |
171 ms |
67220 KB |
Output is correct |
| 42 |
Correct |
171 ms |
67216 KB |
Output is correct |
| 43 |
Correct |
183 ms |
67332 KB |
Output is correct |
| 44 |
Correct |
186 ms |
67284 KB |
Output is correct |
| 45 |
Correct |
167 ms |
67344 KB |
Output is correct |
| 46 |
Correct |
170 ms |
67356 KB |
Output is correct |
| 47 |
Correct |
168 ms |
67364 KB |
Output is correct |
| 48 |
Correct |
180 ms |
67364 KB |
Output is correct |
| 49 |
Correct |
172 ms |
67348 KB |
Output is correct |
| 50 |
Correct |
174 ms |
67276 KB |
Output is correct |
| 51 |
Correct |
172 ms |
67368 KB |
Output is correct |
| 52 |
Correct |
172 ms |
67348 KB |
Output is correct |
| 53 |
Correct |
175 ms |
67344 KB |
Output is correct |
| 54 |
Correct |
174 ms |
67332 KB |
Output is correct |
| 55 |
Correct |
176 ms |
67448 KB |
Output is correct |
